Website: www.summervillega.orgProfileIncorporated Date: January 1, 1891Population: 4,534Total Area: 4.0 sq mi Contact InformationPO Box 180 Summerville, GA 30747 Phone Number: (706) 859-0900Fax Number: (706) 859-0904 Summerville, the Chattooga County seat, incorporated on December 21, 1839. Some of the festivals and special events held in Summerville include the Howard Finster Arts Festival and the American Cancer Society's Relay for Life.